University of Illinois Physics Professor Paul Kwiat and members of his research group have developed a new tool for precision measurement at the nanometer scale in scenarios where background noise and ...

Learning about your health can be a mixed bag. It can be fun — learning about my sleep habits and daily steps with the Oura Ring 4 was fascinating. But it can also be anxiety-inducing — longevity ...

The number on the scale does not tell the whole story. Your body weight does not account for your body fat, muscle mass and bone density, and will not tell how much of it is due to water retention or ...

Smart scales measure multiple metrics of body composition — not just your weight. Typically, they use bioelectrical impedance analysis (BIA), a noninvasive tool that evaluates your body composition by ...

Recently in my physics lab, students were having trouble with the difference between mass and weight. I had ready answers---it’s a topic I’ve gone over hundreds of times. But after I explained that ...

Rate of perceived exertion (RPE) is a way to measure the level of exertion a person feels during physical activity. RPE is a useful tool that helps people manage the intensity of their physical ...